Answer:
- Castro shared good relations with US Cold War rival, the Soviet Union;
Once Castro became the leader of Cuba, he rushed to make good relations with the Soviet Union. The Soviet Union saw a great opportunity to use this and made a military basis on the Caribbean island, holding the United States in constant fear of attack.
- Castro declared that he would assassinate US president Dwight Eisenhower and destroy the US government;
After multiple attempts of assassination of Castro by the US government, he got revolted, understandably, and threatened that he would assassinate their president and destroy the country.
Step-by-step explanation: